题目

---How much is the ticket to Wuhan?         --- A one-way ticket _________ 40 dollars, and you can _________ another 20 dollars for a round trip.        A. pay; spend      B. cost; spend     C. costs; pay     D. spends; pay 答案：C12．大熊猫的栖息地是（　　）A．高山竹林B．南极冰原C．淡水湖泊D．松林果园